Home / 2,785.54-4,153.97-2,440.48

Finding the Fourth Proportional to 2,785.54, 4,153.97 and 2,440.48

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Solution

The fourth proportional to 2,785.54, 4,153.97 and 2,440.48 is: 3,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.54 : 4,153.97 = 2,440.48 : x
  2. Step 2: Convert to fraction form
    2,785.54/4,153.97 = 2,440.48/x
  3. Step 3: Cross multiply
    2,785.54x = 4,153.97 × 2,440.48
  4. Step 4: Simplify right side
    2,785.54x = 10,137,680.71
  5. Step 5: Solve for x
    x = 10,137,680.71/2,785.54
  6. Step 6: Final answer
    x = 3,639.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.